This review of past and present drug abuse studies examined the significant role that social support systems play in the drug-using behaviors of Hispanics. Preliminary data is presented and discussed on both published and unpublished studies. This review examines: (1) the role and effect of familial factors, such as family pride, family structure, family drug use and sanctions against drug use, and parental involvement and control measures; (2) peer influences related to peer drug use and peer pressure to use drugs; (3) involvement in with religious institutions; (4) involvement in after-school recreational activities and organized in-home activities; (5) the development of drug use prevention and treatment programs targeted for Hispanic youth; and (6) replication studies to validate study results. While results show the important role of social support systems in drug-using behaviors of Hispanics, research gaps continue to exist. References